Hi Discourse community! Am I correct to assume that IP Lookup gets the last IP from the X-Forwarded-For header? Cloudfront seems to be attaching their IP at the end. How would we modify nginx to remove the last IP in the X-Forwarded-For header? We were hoping to get the client IP to prevent spamme…

Just wanted to check if anyone else has a workaround for something like this?

Hi, did you check this? [imagem] How do you setup Cloudflare? Support Hey, I can’t access that account anymore which is why I am making a fresh topic. I am unaware on how to edit the config to include those lines? All help is appreciated.

Have a look at Run other websites on the same machine as Discourse

I just encounted this problem with Cloudflare when I turned on their proxy. I fixed by changing the Nginx config. You ahve to find all the proxy IP addresses and for each one in the http section: set_real_ip_from 173.245.48.0/20; set_real_ip_from 103.21.244.0/22; set_real_ip_from 103.22.200.0/22; …

I’d recommend you switch to the built in solution, because it will automatically update the IP list from Cloudflare when you rebuild the site!

It is probably better to set a cron job to check regularly than rely on rebuilds.

It doesn’t sound like it changes very often: https://community.cloudflare.com/t/how-often-do-cloudflare-ips-change/9802/7

2 years is actually more frequently than I assumed. However, the check is so simple that doing it once per day is no problem. Hopefully, they update the list a few days before new IP ranges go active.

IP Lookup está puxando o X-Forwarded-For do CDN

Suporte ao Produto Instalação

pfaffman (Jay Pfaffman) 9 Setembro , 2021 14:46 4

Dê uma olhada em Run other websites on the same machine as Discourse

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Commit b4a3389 更新后如何获取用户ip Self-hosting nginx , cloudflare	3	500	29 Junho , 2026
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IP Lookup está puxando o X-Forwarded-For do CDN

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